Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

Nature Academic Search

Academic Paper Search：中文科研用户的 Codex / Claude Code / DeepSeek Harness Skill + MCP；跨 CrossRef、PubMed、arXiv、OpenAlex、Europe PMC 检索去重，支持 MeSH、引用核验、引文图谱、试验检索与审计导出。

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit 725c2ec894a2, unchanged since the check below.

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED SECRETS_ENV_READ

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    src/nature_academic_search/relay.py, line 105 response = requests.post(

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    README.md, line 478 本项目从进程环境和可选 TOML 读取配置，不会自动加载 `.env` 文件。

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    scripts/check_wheel.py, line 38 result = subprocess.run(

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    mcp-server/utils/config.py, line 21 return os.environ.get("NCBI_API_KEY") or self._config.get("pubmed", {}).get("api_key", "")

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    scripts/check_wheel.py, line 38

    result = subprocess.run(

    src/nature_academic_search/installer.py, line 24

    runner: Runner = subprocess.run,

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    src/nature_academic_search/relay.py, line 105

    response = requests.post(

    src/nature_academic_search/sources/arxiv.py, line 178

    with urllib.request.urlopen(req, timeout=timeout) as resp:

    src/nature_academic_search/sources/crossref.py, line 101

    resp = requests.get(url, headers=headers, timeout=self._timeout)

    Show more

    src/nature_academic_search/sources/crossref.py, line 163

    resp = requests.get(

    src/nature_academic_search/sources/pubmed.py, line 52

    resp = requests.get(url, params=merged, timeout=timeout)

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    mcp-server/utils/config.py, line 21

    return os.environ.get("NCBI_API_KEY") or self._config.get("pubmed", {}).get("api_key", "")

    src/nature_academic_search/config.py, line 27

    return os.environ.get("NCBI_API_KEY") or self._value("pubmed", "api_key", "")

    README.md, line 478

    本项目从进程环境和可选 TOML 读取配置，不会自动加载 `.env` 文件。

    Show more

    src/nature_academic_search/config.py, line 43

    return os.environ.get("OPENALEX_API_KEY") or self._value(

    src/nature_academic_search/config.py, line 56

    return os.environ.get("SEMANTIC_SCHOLAR_API_KEY") or self._value(

    src/nature_academic_search/relay.py, line 43

    api_key = os.environ.get("ACADEMIC_SEARCH_LLM_API_KEY", "").strip()

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit 725c2ec894a2. requests shell access. The manifest names this permission. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 725c2ec894a2f40b7d3f811528b9cc7e4ebff6c8

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen